How to Diagnose and Replace a Mitsubishi Window Regulator

If the windows in your vehicle are stuck and will not move up or down, it’s likely that there’s some sort of a problem with your Mitsubishi window regulator. The window regulator controls the motions of the windows in the car; when it’s broken, the windows remain fixed in place. The Mitsubishi Eclipse window regulator, like most other updated vehicle regulators, is electrically powered. Some older vehicles have manually powered regulators that are operated by a turn knob that’s found on the inside of the car door. If you have an automatically powered regulator that’s broken, you’ll need to engage in Mitsubishi automatic window repair in order to properly solve the problem and get your windows working again.

Tools and Materials Needed:

• Screwdrivers of different sizes


• Prying tool


• Volt meter


• Replacement window regulator that’s the same as the one currently in your Mitsubishi

Step 1 – Diagnose the Problem

Test to see if all of the windows are broken or if only some of them are fixed in place. If all of the windows are broken, there’s likely some sort of an electrical problem with the regulator or a blown fuse. These problems can often be fixed without resorting to replacing the entire system.

Listen for sounds of the regulator motor working when you try to open or close any of the windows that are broken. If you do hear sounds of this nature coming from the door, it’s likely that a part of the system has come out of alignment and that you’ll have to reset it before the windows will work again.

Step 2 – Access the Door Panel

Remove the door panel in order to access the regulator. Unscrew the screws that attach the plastic door panel to the car door. Set the screws aside in a safe place for later on. Use the prying tool to carefully remove the panel from the metal door.

Step 3 – Visually Assess the Damage and Check for Electricity

Inspect the regulator for signs of damage to the wiring or for blown fuses. If you do see any damage, you can often fix the problem by simply replacing the broken components. Otherwise, check that electricity is flowing through the circuit properly by using a volt meter.

Step 4 – Replace the Regulator, If Necessary

Remove the bolts that attach the regulator motor to the door. Carefully remove the regulator from the door, being sure that the electricity is off first. Follow the installation instructions to attach the new Mitsubishi window regulator in the old one’s place. Make sure that electrical power is flowing to the new regulator before you reattach the car door panel.

If you have any questions, consult with a mechanic.

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